#2B3A73#2B3A73

#2B3A73 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.099 H 269.9°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#2B3A73
RGB	rgb(43, 58, 115)
HSL	hsl(228, 46%, 31%)
HSV	hsv(228, 63%, 45%)
CMYK	cmyk(62.6%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(26.09, 13.17, -34.79)
CIE-LCH	lch(26.09, 37.20, 290.73°)
OKLab	oklab(36.77% -0.0002 -0.0994)
OKLCH	oklch(36.77% 0.099 269.9)
XYZ	xyz(5.6028, 4.7771, 16.8431)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3A73 #73642B

analogous

#2B5E73 #2B3A73 #402B73

triadic

#2B3A73 #732B3A #3A732B

tetradic

#2B3A73 #732B5E #73642B #2B7340

square

#2B3A73 #732B5E #73642B #2B7340

split-complementary

#2B3A73 #73402B #5E732B

monochromatic

#0A0D1A #1A2446 #2B3A73 #3C50A0 #586EC1

Accessibility & contrast

On white

10.74

#2B3A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2B3A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3A73

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3A73	#FFFFFF	#000000	##FFFFFF
##2B3A73	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4175

Deuteranopia (green-blind)

#123B72

Tritanopia (blue-blind)

#004751

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b3a73;
/* rgb */ color: rgb(43, 58, 115);
/* oklch */ color: oklch(36.8% 0.099 269.9);

Tailwind

colors: {
  custom: {
    50: '#6c6f9c',
    500: '#2b3a73',
    950: '#000000',
  },
}

SCSS

$custom: #2b3a73;
$custom-light: #6c6f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3a73",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 227.5,
    "s": 45.57,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36768,
    "c": 0.09938,
    "h": 269.9
  },
  "luminance": 0.04778
}

Semantic roles & 50–950 ramp

primary

#2B3A73

secondary

#A59455

accent

#BA53D5

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #2B3A73

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →